Auxiliary air intake for internal-combustion-engine intake manifolds



Feb. 17, 1931. s. B. ALCQRIZA ,95

AUXILIARY AIR INTAKE FOR INTERNAL COMBUSTION ENGINE INTAKE MANIFOLDSFiled Nov. 18, 1929 3 Sheets-Sheet 1 A tiorney s. B. ALCORIZA Feb. 17,1931.

AUXILIARY AIR INTAKE FOR INTERNAL COMBUSTION ENGINE INTAKE MANIFOLDS V 3Sheets-Sheet 2 Filed Nov. 18, 1929 Attorney Feb. 17,1931. I s. B.ALCORlZA 1,792,959

AUXILIARY AIR INTAKE FOR INTERNAL COMBUSTION ENGINE INTAKE MANIFOLDSFiled Nov. 18. 1929 s Sheets-Sheet 3 In venior A itomey Patented Feb.17, 1931 UNITED STATES PATENT OFFICE SOFRONIO B. ALCORIZA, OF STOCKTON;CALIFORNIA Application filed. November 18. 1929. Serial No. 405,007.

a. portion of the exhaust pipe for heating the air and delivering thesame to the intake manifold.

A still further very important object of the invention resides in theprovision of a device of this nature which is simple in con struction,inexpensive to manufacture, easy to assemble anddisassemble for repairand replacement purposes, thoroughly efficient and reliable in use andoperation, and other- 2 wise well adapted to the purpose for which it isdesigned.

With. the above and numerous other objects in view as will appear as thedescription proceeds, the invention resides in certain novel features ofconstruction, and in the combination and arrangement of parts as will behereinafter more fully described and claimed.

In the drawing:

Figure 1 is a side elevation of an internal combustion engine showing myimproved device placed thereon,

Figure 2 is a longitudinal section through the device.

' Figure 3 is a perspective view of the valve,

Figure 4 is a perspective view of the stem bushing,

Figure 5 is a sectional view through the exhaust pipe and hot aircollector thereon,

Figure 6 is a sectional view taken substantially on the line 6 6 ofFigure 2,

Figure 7 is an end elevation of he device,

Figure 8 is a longitudinal section through the nipple leading from thehot air collector, and

Figure 9 is a perspective view of the detac-hable head of the device.

Referring to the drawing in detail it will be seen that the numeral 5denotes a cylinder with a relatively thick head 6 at one end and arelatively thin head 7 at the other end. The

head 7 has an opening 8 therein beveled at its edges to form valve seatto receive valve 9 having a stem 11 which is slidable through a bore inthe center of the head 6, the outer end of the bore being countersunkand threaded as indicated at 10 to threadedly receive one end of abushing 11 which has a square bore to receive the square portion 12 ofthe valve stem 11, the square portion 12 merges into a threaded portionor extension 14 extending through a central opening in a bar15.

A detachable cone shaped head 16 is fastened by means of threaded endsof rods 17 to the end of-the'cylinder 5 adjacent head 7 and these rods17 extend beyond the head 6 and have the bar 15 slidable thereon.

Springs 18 are disposed about the rods 17 impinging against the bar 15to hold it against nuts 19 on the extension 14 and normally holdingthevalve 9 closed so that to open the valve 9', 'it is necessary toovercome the tension of the springs 18 and of course this tension may bevaried by manipulation of the nut 19 as will be quite apparent.

A pipe 22 through the apex of the coneshaped head 16 and tapped into oneside of the intake manifold 23 of the engine. 1 A pipe 24 is tapped intothe center of the cylinder 5 and is coupled with a nipple 26 having astrainer 27 incorporated therein. p A U-shaped air collector 27 isformed with flanges f at the ends of its bight b so that the bight b isheld in spaced relation to a portion of the exhaust pipe 28. One side aof the collector 27 is curved concentrically with the small portion ofthe pipe 28 while the other side is straight and has a screw 29extending therethrough and engaged in the pipe 28.

From the above detailed description it will be seen that when thesuction inthe intake manifold 3 is sufliciently great to unseat thevalve 9 against the tension of the springs 18 air will be sucked intothe collector 27 and heated by the exhaust manifold 28 anddrawn throughthe pipe 24 into the cylinder 5, through the head 16 and pipe 22 intothe intake manifold as needed.

Obviously by a proper adjustment of the nuts 19, theproper eliioiencymay be obtained or economy of gas consumption and maximum power.

It is thought that the construction, operation, utility and advantagesof this invention will now be quite apparent to those skilled in thisart without a more detailed description thereof.

The present embodiment of the invention has been disclosed inconsiderable detail merely for the purposes of exemplification since inactual practice it attains the features of advantage enumerated asdesirable in the statement of the invention and the above description.

It will be apparent that changes in the details of construction, and inthe combination and arrangement of parts may be resorted to withoutdeparting from the spirit or scope of the invention as hereinafterclaimed or sacrificing any of its advantages.

Having thus described my invention, what I claim as new is:

1. A device of the class described comprising a cylinder having a headat one end formed with a central bore and a head at i he other endformed with a valve seat, a valve associated with said valve seat andhaving a stem slidahle through the here, an auxiliary head on thecylinder adjacent the head with the valve seat, said auxiliary headtapering a my from the cylinder and having a pipe engaged therein to betapped into an intake manifold, rods threadedly engaged with thecylinder and the auxiliary head to assemble the parts together andextending along 1' 2e cylinder past the head "with the bore, a barslidable on said rods and having an opening through which the valve stemextends, nuts on the valve stem with which the bar is adapted to abut,and springs on the rods impinging against the bar to hold the same inabutment with the nuts and to normally hold the valve seated, and intakemeans for the cylinder.

2. A device of the class described comprising acylinder havin a head atone en; formed with a central iore and a head at the other end formedwith a valve seat, a valve associated with said valve seat and having astem slidahle through the bore, an auxiliary head on the cylinderadjacent the head with the valve seat, said auxiliary head tapering awayfrom the cylinder and having a pipe engaged therein to be tapped into anintake manifold, rods threadedly engaged with the cylinder and theauxiliary head to assemble the parts together and extending along thecylinder past the head with the bore, a bar slidable on said rods andhaving an opening through which the valve stem extends, nuts on thevalve stem with which the bar is adapted to abut, and springs on therods impinging against the bar to hold the same in abutment with thenuts and to normally hold the valve seated, intake means for thecylinder, an intermediate portion of the valve stem being square, and abushing threaded in the bore of said head having a bore and the bore ofthe bushing being squared to slidably receive said square portion of thevalve stem.

3. A device of the class described comprising a cylinder having a headat one end formed with a central bore and a head at the other end formedwith a valve seat, a valve associated with said valve seat and having astem slidable through the bore, means for connecting the cylinder at itsvalved end with an intake manifold, rods engaged with the cylinder andextending along the cylinder past the head with the bore, a bar slidableon the rods and having an opening through which the valve stem extends,nuts on the valve stem with which the bar is adapted to abut, andsprings on the rods impinging against the bar to hold the same inabutment with the nuts and normally hold the valve seated, and intakemeans for the cylinder.

in testimony whereof I affix my signature.

SOFRONIO B. ALCORIZA.

